The Duke and Duchess of Sussex will travel downunder on October 16, touring around Australia and the Pacific before arriving in New Zealand on October 28.

They'll arrive in Wellington and be greeted off the plane by Prime Minister Jacinda Ardern.

The royal couple will then head to Government House for a traditional welcome on the lawn, which will include a hongi with the Governer-General's kuia and kaumātua, a powhiri, a haka from members of the New Zealand Defence Force and a 21-gun salute.

Following the welcome, Harry and Meghan will travel to the Pukeahu National War Memorial Park to lay a wreath at the Tomb of the Unknown Warrior.

This will also be the public's first opportunity to meet the royal couple, with a public walkabout scheduled for Memorial Park.

The following day, the couple will visit a Wellington cafe before meeting a number of young people from mental health projects in NZ.

They'll then travel across Cook Strait and head to Abel Tasman National Park, where they'll embark on a walk with one of the rangers before lunching with local school children at a BBQ and tree planting.

They'll finish their second day in the country back in Wellington, attending a creative arts event at Courtenay Creative.

On October 30, the Duke and Duchess will travel to Auckland where they'll start by visting the North Shore to dedicate a 20-hectare section of native bush to the Queen's Commonwealth Canopy.

Later that day, they'll have their second public appearance with Aucklanders getting an opportunity to meet the royal couple at the Viaduct.

They'll wrap up their tour with a trip to Rotorua, where they'll visit Te Papaiouru Marae and Rainbow Springs to learn about the centre's kiwi breeding programme.

They'll then have their final public engagement of the trip, meeting members of the public in Rotorua that evening.

Prince Harry and Meghan will travel back to Auckland that night, and fly out to London the following day.